Vesper is a well-known and high-end cocktail bar with excellent Italian & Spanish dishes. If you are looking at having great food at reasonable prices then Vesper would be the place you would want to go. Its not far from the BTS Sala Daeng Station.
Vesper offers brunch and happy hour with outdoor seating as well as free WiFi. They also accept credit cards and offer some of the better decor you will find in Bangkok compared to the prices on the menu. It is well worth a visit and their Italian chef is excellent and second to none. The cocktails on offer is excellent and the bar staff do know their cocktails. The Baby Octopus Salad and Grilled Australian Beef Striploin is well worth the price and better than most. They have clearly spent good money on their decor as it looks very classy.